Name the scientific Advisor to the Defence Minister and DRDO's DG (Missiles & Strategic Systems) who has won the first IEI-IEEE Award for Engineering Excellence - 2015 in recognition of his significant national contributions towards missiles and aerospace technologies.
If for the year a country's GDP was $ 1315 million, consumer spending was $900 million, investment by businesses was $180 million, exports were $85 million and imports were $100 million, calculate government spending?